Photoelectric X-ray tube with gain

Details Photoelectric X-ray tube with gain Photoelectric X-ray tube with gain

1996-07-30

1998-06-16

Porta, David P.

X-ray or gamma ray systems or devices

Source

Electron tube

378138, H01J 3514, H01J 3506

Patent

active

057683379

ABSTRACT:
An X-ray tube has an anode and a photocathode inside a vacuum envelope and an electron multiplier is disposed between them. Such an electron multiplier may be a plurality of sequentially disposed dynodes or a microchannel plate. Because of the secondary electron emission from such an electron multiplier, a higher-power radiation is obtained without requiring a high optical power level to generate photoelectrons. The vacuum envelope may be of a rotary type with the anode and photocathode having annular regions.

REFERENCES:
patent: 4821305 (1989-04-01), Anderson
patent: 5386445 (1995-01-01), Rand
patent: 5504796 (1996-04-01), De Silveira et al.
patent: 5576549 (1996-11-01), Hell et al.

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